In order to conduct Japanese phonetics education with international students as the subject, this study examined development of study contents for practicing prosody that are suited to undergraduate international students. For this purpose, I developed prosody practicing aids in applying phonetic recognition techniques. For the CALL System, I utilized the pre-existing “Japanese CALLSystem”. As a result, I found that the expressions available were insufficientfor use on campus, each sentence was comparatively short, and there were cases where pronunciation was not evaluated precisely by the CALL System. I therefore included three situations that would be familiar for international students, and created 40 sentences of a maximum of 40 morae （syllables）. Upon inserting them into the CALL System, I analyzed the problems associated with pronunciation of the added sentences and applied settings that reflected pronunciation evaluation. Also, in order for adjustments to be possible in actual use, I applied three settings for the level of strictness used as criteria for the automatic evaluation. After implementation of the study contents in class, I found that determining what problems faced each student became clearer, and there were improvements in how students could practice individually, but, on the other hand, there were problems with the system recognitionising differences in voiced and voiceless sounds as a sentence became longer.